Global Patent Index - EP 3379695 A1

EP 3379695 A1 20180926 - POWER TRANSMISSION DEVICE, NONCONTACT POWER TRANSMISSION SYSTEM, AND METHOD OF ALIGNING POWER RECEPTION COIL WITH POWER TRANSMISSION COIL

Title (en)

POWER TRANSMISSION DEVICE, NONCONTACT POWER TRANSMISSION SYSTEM, AND METHOD OF ALIGNING POWER RECEPTION COIL WITH POWER TRANSMISSION COIL

Title (de)

LEISTUNGSÜBERTRAGUNGSVORRICHTUNG, BERÜHRUNGSLOSES LEISTUNGSÜBERTRAGUNGSSYSTEM UND VERFAHREN ZUM AUSRICHTEN EINER LEISTUNGSEMPFANGSSPULE MIT EINER LEISTUNGSÜBERTRAGUNGSSPULE

Title (fr)

DISPOSITIF DE TRANSMISSION DE PUISSANCE, SYSTÈME DE TRANSMISSION DE PUISSANCE SANS CONTACT ET PROCÉDÉ D'ALIGNEMENT DE BOBINE DE RÉCEPTION D'ÉNERGIE AVEC UNE BOBINE DE TRANSMISSION DE PUISSANCE

Publication

EP 3379695 A1 20180926 (EN)

Application

EP 18162781 A 20180320

Priority

JP 2017057961 A 20170323

Abstract (en)

A power transmission device is configured to transmit power to an instrument comprising a first case, a power reception coil arranged to generate an induced current due to magnetic flux in a first direction intersecting a gravitational direction, and a holder configured to hold the power reception coil at a predetermined distance from an outer surface of the first case in the first case, in a noncontact manner. The device comprises a conductive second case, a power transmission coil, and an elastic body. The conductive second case has an opening into which the instrument is inserted and in which the instrument is stored. A power transmission coil is disposed in the second case so as to generate magnetic flux in the first direction, and is arranged to generate an induced current in the power reception coil. The elastic body is disposed in the second case, and is arranged to maintain a distance between the power transmission coil and the power reception coil to be constant, and to support the power transmission coil.

IPC 8 full level

H02J 50/12 (2016.01); H02J 7/00 (2006.01); H02J 50/90 (2016.01); H02J 50/40 (2016.01)

CPC (source: CN EP US)

H02J 7/0044 (2013.01 - EP US); H02J 7/025 (2023.08 - CN); H02J 50/10 (2016.02 - US); H02J 50/12 (2016.02 - EP US); H02J 50/90 (2016.02 - EP US); B41J 2/35 (2013.01 - US); B41J 3/36 (2013.01 - US); H02J 50/40 (2016.02 - EP US)

Citation (search report)

Designated contracting state (EPC)

AL AT BE BG CH CY CZ DE DK EE ES FI FR GB GR HR HU IE IS IT LI LT LU LV MC MK MT NL NO PL PT RO RS SE SI SK SM TR

Designated extension state (EPC)

BA ME

DOCDB simple family (publication)

EP 3379695 A1 20180926; EP 3379695 B1 20200304; CN 108631419 A 20181009; CN 108631419 B 20220819; JP 2018161011 A 20181011; JP 6909026 B2 20210728; US 10530197 B2 20200107; US 11005311 B2 20210511; US 2018278098 A1 20180927; US 2020144873 A1 20200507

DOCDB simple family (application)

EP 18162781 A 20180320; CN 201810198794 A 20180309; JP 2017057961 A 20170323; US 201815907611 A 20180228; US 202016733478 A 20200103